Euphemia of Hungary

Euphemia of Hungary was a daughter of King Béla I of Hungary and his wife, Richesa (or Adelaide) of Poland (1050s – 11 April 1111). She was the wife of Duke Otto I of Olomouc, the second son the Duke of Bohemia Bretislav I . They were married before 1073. Some researchers believe that Euphemia was the daughter of Bela's older brother Andrew I of Hungary and his wife Anastasia of Kiev, with the alternative name Adelhaid been proposed, due to minimal sources on her birth. Though the theory supported by most scholars and historians is that Euphemia was born as a result of a marriage between King Bela I and an unknown Piast Princess. Together they have four children: